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 * Copyright (c) 2001-2009, JavaPLT group at Rice University (drjava@rice.edu)
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 * modification, are permitted provided that the following conditions are met:
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package edu.rice.cs.drjava.config;
import java.util.Vector;
import edu.rice.cs.plt.iter.IterUtil;

public class DefaultOptionMap implements OptionMap {
  
  private final Vector<OptionParser<?>> keys = new Vector<OptionParser<?>>();
  
  public <T> T getOption(OptionParser<T> o) { return o.getOption(this); }
  
  public <T> T setOption(Option<T> o, T val) {
    setOption(o);
    return o.setOption(this,val);
  }
  
  private <T> void setOption(OptionParser<T> o) { if (keys.indexOf(o) == -1) keys.add(o); }
  
  public <T> String getString(OptionParser<T> o) { return o.getString(this); }
  
  public <T> void setString(OptionParser<T> o, String s) {
    setOption(o);
    o.setString(this,s);
  }
  
  public <T> T removeOption(OptionParser<T> o) {
    keys.remove(o);
    return o.remove(this);
  }
  
  public Iterable<OptionParser<?>> keys() { return IterUtil.immutable(keys); }
  
  public String toString() {
    final StringBuilder result = new StringBuilder("\n{ ");
    
    for (OptionParser<?> key: keys) {
      result.append(key.name).append(" = ").append(getString(key)).append('\n');
    }
    
    result.append('}');
    return result.toString();
  }
}
